NIIN Output Data
NIIN:
NSN:
Item Name:
SCREW , SHOULDER
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
Reference/Part Number
CAGE Information
| Code |
Company |
| 19200 |
U S ARMY ARMAMENT RESEARCH & DEVELOP |
| 56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
| 50394 |
SPS TECHNOLOGIES INC UNBRAKO DIV |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASK |
HEAD STYLE |
KNURLED NO. 1 |
| ASDB |
WIDTH ACROSS FLATS |
0.250 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.313 INCHES NOMINAL |
| AATN |
SHOULDER DIAMETER |
0.498 INCHES NOMINAL FIRST SHOULDER |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AASL |
HEAD DIAMETER |
0.500 INCHES NOMINAL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAUM |
LOCKING FEATURE |
STRIP THREADS |
| MATT |
MATERIAL |
STEEL OVERALL |
| AASB |
FASTENER LENGTH |
1.125 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
16 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AATX |
SHOULDER LENGTH |
0.500 INCHES NOMINAL FIRST SHOULDER |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AASA |
THREAD LENGTH |
0.625 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
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